Effects of Long-Term Subcultured Arbuscular Mycorrhizal Fungi on Red Pepper Plant Growth and Soil Glomalin Content.
10.1080/12298093.2018.1461315
- Author:
Gopal SELVAKUMAR
1
;
Pyoung Ho YI
;
Seong Eun LEE
;
Charlotte C SHAGOL
;
Seung Gab HAN
;
Tongmin SA
;
Bong Nam CHUNG
Author Information
1. Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju, Republic of Korea. chbn7567@korea.kr
- Publication Type:Original Article
- Keywords:
Arbuscular mycorrhizal fungi;
glomalin;
pepper;
Claroideoglomus;
Gigaspora
- MeSH:
Bacteria;
Capsicum*;
Colon;
Colony Count, Microbial;
Fruit;
Fungi*;
Grassland;
Plants*;
Potassium;
Soil*;
Sorghum;
Spores
- From:Mycobiology
2018;46(2):122-128
- CountryRepublic of Korea
- Language:English
-
Abstract:
Arbuscular mycorrhizal fungi (AMF) are well-known for their ability to improve plant growth and help plants withstand abiotic stress conditions. Unlike other fungi and bacteria, AMF cannot be stored, as they are obligate biotrophs. Long-term preservation of AMF spores is challenging and may lead to the loss of viability and efficiency. This study aimed to understand the effect of prolonged subculture of AMF species on the growth and glomalin-related soil protein (GRSP) from red pepper (Capsicum annuum L.). AMF spores were mass-produced using different techniques and subcultured in pots with sorghum sudangrass as the host plant for 3 years. Experimental soil samples were collected from natural grassland. Five different AMF inocula were used in triplicate as treatments. After 70 days of growth, red pepper plants were harvested and plant dry weight, plant nutrient content, mycorrhizal colonization, AMF spore count, and soil glomalin content were determined. AMF-treated plants displayed higher dry weight than controls, with only fruit dry weight being significantly different. Similarly, significant differences in phosphorous and potassium contents of the above-ground plant parts were observed between mycorrhizal and control treatments. In addition, soil GRSP content was significantly higher in plants inoculated with Rhizophagus sp. and Gigaspora margarita. The increased plant growth and GRSP content suggest that AMF can be maintained for 3 years without losing their efficiency if subcultured regularly with different symbiotic host plants.
